Released in March 2017, the G6 is LG's flagship phone running Android 7.0. This device is available across all major wireless carriers. Physical repair of this device may eliminate water resistance and cause the device to be vulnerable to water damage.
Dry it with a Hair Dryer. It is a good idea? NO!, If it has vapor there may your phone has liquid inside that can cause problems on the future. The phone need a liquid damage service on my opinion.